According to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) is criteria, attention deficit/hyperactivity disorder (ADHD) contains three subtypes: ADHD-inattention (ADHD-I), ADHD-Hyperactive-impulsive (ADHD-H), and combined type (ADHD-C). Because of non-significant conduct problems, children with ADHD-I are neglected in class by teachers. Studies have found that the academic performance of children with ADHD-I were the worst among the three subtypes. We used neuroscientific knowledge to review the attentional deficits in children with ADHD-I. We also introduced some skills for children with ADHD-I in order to improve their attention deficits in class. Finally, neuropsychological assessment needed to be used for children with ADHD-I.